Posted on 10/14/2016 6:24:42 PM PDT by BenLurkin
In the northern hemisphere of Mars, between the planet’s southern highlands and the northern lowlands, is a hilly region known as Colles Nilli. This boundary-marker is a very most prominent feature on Mars, as it is several kilometers in height and surrounded by the remains of ancient glaciers.
And thanks to the Mars Express mission, it now looks like this region is also home to some buried glaciers. Such was the conclusion after the orbiting spacecraft took images that revealed a series of eroded blocks along this boundary, which scientists have deduced are chunks of ice that became buried over time.
The Mars Express images show a plethora of these features along the north-south boundary. They also reveal several features that hint at the presence of buried ice and erosion – such as layered deposits as well as ridges and troughs. Similar features are also found in nearby impact craters. All of these are believed to have been caused by an ancient glacier as it retreated several hundred million years ago.
It is further reasoned that these remaining ice deposits were covered by debris that was deposited from the plateau as it eroded. Wind-borne dust was also deposited over time, which is believed to be the result of volcanic activity. This latter source is evidenced by steaks of dark material deposited around the blocks, as well as dark sand dunes spotted within the impact craters.
Similar features are believed to exist within many boundary regions on Mars, and are believed to represent periods of glaciation that took place over the course of eons. And this is not the first time buried glaciers have been spotted on Mars.
(Excerpt) Read more at universetoday.com ...
Didn’t I read a 1930s science fiction novel about this?
13 October 2016
“This jumble of eroded blocks lies along the distinctive boundary between the Red Planet’s southern highlands and the northern lowlands, with remnants of ancient glaciers flowing around them. ...”
http://www.esa.int/Our_Activities/Space_Science/Mars_Express/Buried_glaciers_on_Mars
Here dinosaurs that should be long extinct live and roam, as do a curious race of humanoid savages that appear to exhibit all the various phases of Man's evolutionary development. To survive long enough to repair and replenish the U-boat, wartime enemies must put aside their differences and cooperate with one another. But not everyone is playing from the Kumbaya songbook...
http://www.eccentric-cinema.com/cult_movies/land_time_forgot.htm
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....Didn’t I read a 1930s science fiction novel about this...
by John Campbell?
Do we suppose that human kind once lived on Mars?
Thanks, a nice break after the days news!
Oops, post 7 was meant for you!
Are they related to the Secret Gardens of the Moon ?
My son actually made this discovery first...before NASA scientists.
My kid was an undergrad geology major who did a term paper for a class on the use of remote sensing in geology. He studied the Mars Orbiter images.
Because he was studying geology, he immediately recognized the glacial moraines and erosion on Mars. He wrote a paper on it and presented at the American Geological Society.
When he was growing up, he was fascinated by rocks. I have a photo of him standing IN the San Andreas Fault in California where we visited when he was doing a school science project. I helped him make a seismometer for that project. He was 8 years old.
Obviously, I am very proud of my offspring.
I did a couple of things right. We had NO TV. No cable or antenna, only pre-recorded cartoons. We lived in a rural area and the only kids who visited were invited. If they misbehaved or were a bad influence, they did not get invited back. My kids had tree houses, rope swings, animals including a pony to ride...really an idyllic childhood. Outside all the time. They started reading science fiction at an early age.
Oh yeah, at Halloween I would don my Darth Vader costume and he went as Luke Skywalker.
I remember a backpacking trip when he was 12. All he wanted to do was talk about propulsion ideas for starships.
Now he is grown up and running the research division for a big geology lab.
I’m getting all misty thinking about my kids....
Think Doctor Who had an esposiod about this.
Pyramids of Mars
We read the same stuff, then.
The weird thing is that old pulp had more advanced vocabulary than today’s textbooks.
That is a cool story of you and your son. After getting a BS degree in Journalism, I also majored in Geology for awhile until a job offer pulled me away. Geology is definitely a fascinating science.
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